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  • mysql 导出数据字典

    SELECT
    TABLE_CATALOG,
    TABLE_SCHEMA as 数据库名,
    TABLE_NAME as 表名,
    COLUMN_NAME as 字段名,
    ORDINAL_POSITION as 字段位置,
    COLUMN_DEFAULT as 字段默认值,
    IS_NULLABLE 是否允许空值,
    DATA_TYPE as 数据类型,
    CHARACTER_MAXIMUM_LENGTH as 以字符为单位的最大长度,
    CHARACTER_OCTET_LENGTH as 以字节为单位的最大长度,
    NUMERIC_PRECISION as 数值类型的长度,
    NUMERIC_SCALE as 小数点精度,
    DATETIME_PRECISION as 回的日期时间值的精度,
    CHARACTER_SET_NAME as 编码方式,
    COLLATION_NAME as 校对集,
    COLUMN_TYPE as 字段类型,
    COLUMN_KEY as 键,
    EXTRA as 额外的信息例如自动递增在这里显示,
    PRIVILEGES as 权限,
    COLUMN_COMMENT as 字段注释,
    GENERATION_EXPRESSION
    FROM
        information_schema. COLUMNS
    WHERE
        TABLE_SCHEMA = 'Testplatform'
    

      

    SELECT
    TABLE_SCHEMA,
    TABLE_NAME,
    COLUMN_NAME,
    COLUMN_TYPE,
    COLUMN_COMMENT
    FROM
    information_schema. COLUMNS
    WHERE
    TABLE_SCHEMA = '数据库名称'

    SELECT
    TABLE_SCHEMA,
    TABLE_NAME AS '表名',
    COLUMN_NAME AS '字段名',
    COLUMN_TYPE AS '数据类型',
    IS_NULLABLE AS '允许为空',
    EXTRA AS '额外信息',
    COLUMN_COMMENT AS '字段说明'
    FROM
    information_schema.`COLUMNS`
    WHERE
    TABLE_SCHEMA = 'Testplatform'

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  • 原文地址:https://www.cnblogs.com/qianjinyan/p/10817978.html
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